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The hardening hypothesis: does it matter?
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  1. Correspondence to Graeme Docherty, Division of Epidemiology and Public Health, UK Centre for Tobacco Control Studies, C100, Clinical Sciences Building 2, University of Nottingham, City Hospital, Hucknall Road, Nottingham NG5 1PB, UK; graeme.docherty{at}nottingham.ac.uk
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Docherty G, McNeill A
The hardening hypothesis: does it matter?

Publication history

  • First published February 16, 2012.
Online issue publication 
May 13, 2016

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